iOS开发——UI篇Swift篇&玩转UItableView（四）自定义&封装

UItableView自定义&封装

一：Model

 class AppsModel: NSObject {

     //定义模型的三个属性
     var imageName:String!  //图片名称
     var appName:String!     //应用名称
     var appDescription:String!      //应用描述

     //自定义初始化方法
     init(imageName image_Name:String , app_Name:String , app_Description:String) {
         self.imageName=image_Name
         self.appName=app_Name
         self.appDescription=app_Description
     }

     // MARK: - NSCoding
     func encodeWithCoder(_encoder: NSCoder)
     {
         _encoder.encodeObject(self.imageName, forKey: "M_imageName")
         _encoder.encodeObject(self.appName, forKey: "M_appName")
         _encoder.encodeObject(self.appDescription, forKey: "M_appDescription")
     }

     init(coder decoder: NSCoder)
     {
 //        imageName = decoder.decodeObjectForKey("M_imageName") as String
 //        appName = decoder.decodeObjectForKey("M_appName") as String
 //        appDescription = decoder.decodeObjectForKey("M_appDescription") as String

         //2015年5月2号修改
         imageName = decoder.decodeObjectForKey("M_imageName") as! String
         appName = decoder.decodeObjectForKey("M_appName") as! String
         appDescription = decoder.decodeObjectForKey("M_appDescription") as! String
     }

 }

二：View

 class MyTableViewCell: UITableViewCell {

     var iconImageView:UIImageView!   //图片
     var appNameLabel:UILabel!        //标题
     var decLabel:UILabel!            //描述

     //赋值方法 - 显示cell内容方法
     func showAppInfoWithModel(model:AppsModel)
     {
         //获取model中得图片
         iconImageView.image = UIImage(named: model.imageName)

         //获取model中app名称
         appNameLabel.text = model.appName

         //获取model中app描述
         decLabel.text = model.appDescription
     }

     override init(style: UITableViewCellStyle, reuseIdentifier: String?)
     {
         super.init(style: style, reuseIdentifier: reuseIdentifier)

         //创建iconImageView
         iconImageView = UIImageView(frame: CGRectMake(, , , ))
         self.addSubview(iconImageView)

         //创建appNameLabel
         appNameLabel = UILabel(frame: CGRectMake(, , , ))
         appNameLabel.font = UIFont.systemFontOfSize()
         self.addSubview(appNameLabel)

         //创建decLabel
         decLabel = UILabel(frame: CGRectMake(, , , ))
         decLabel.font = UIFont.systemFontOfSize()
         decLabel.numberOfLines =
         decLabel.textColor = UIColor.lightGrayColor()
         self.addSubview(decLabel)

     }

     required init(coder aDecoder: NSCoder) {
         fatalError("init(coder:) has not been implemented")
     }

     override func awakeFromNib() {
         super.awakeFromNib()
         // Initialization code
     }

     override func setSelected(selected: Bool, animated: Bool) {
         super.setSelected(selected, animated: animated)

         // Configure the view for the selected state
     }

 }

三：Controller

 class UITableViewControllerCustom: UIViewController, UITableViewDataSource, UITableViewDelegate  {

     var titleString:String!

     @IBOutlet var titleLabel:UILabel!
     @IBOutlet var listTableView : UITableView!

     //定义数组
     var items:[AppsModel]!

     //返回按钮事件
     @IBAction func backButtonClick()
     {
         self.navigationController?.popViewControllerAnimated(true)
     }

     override func viewDidLoad() {
         super.viewDidLoad()

         titleLabel.text = titleString

         //定义三个模型对象
         var model1:AppsModel = AppsModel(imageName: "appIcon1.png", app_Name: "Football Maze", app_Description: "足球迷宫，迷宫的新玩法，益智虚拟迷宫游戏。快来挑战你的空间想象，足球迷宫带你到一个不同的世界… 迷宫大家都在玩，你还在等什么。")
         var model2:AppsModel = AppsModel(imageName: "appIcon2.png", app_Name: "租房点评", app_Description: "租房被骗？现在开始，你来改变这一切！《租房点评》为你而备，租房无忧！")
         var model3:AppsModel = AppsModel(imageName: "appIcon3.png", app_Name: "iJump", app_Description: "摇动手机，松鼠就可以运动啦，越跳越高，注意会有虫子咬坏跳板哦，祝你玩得开心")
         var model4:AppsModel = AppsModel(imageName: "appIcon4.png", app_Name: "哪里逃", app_Description: "哪里逃 是一款躲避类游戏，拖动美女图片，躲避，追来的帅锅，帅锅人数越来越多，不要被追到哦。")

         //修改数组值
         items = [model1,model2,model3,model4]

         //TabelView刷新
         listTableView.reloadData()

         // Do any additional setup after loading the view.
     }

     override func didReceiveMemoryWarning() {
         super.didReceiveMemoryWarning()
         // Dispose of any resources that can be recreated.
     }

     /*
     // MARK: - Navigation

     // In a storyboard-based application, you will often want to do a little preparation before navigation
     override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) {
         // Get the new view controller using segue.destinationViewController.
         // Pass the selected object to the new view controller.
     }
     */

     //MARK: - UITableViewDelegate
     //tableView数据源：返回行数
     func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
     {
         return items.count
     }

     //tableView 数据源：每一行高度
     func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat
     {

     }

     //tableView数据源：每一行内容
     func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
     {
         //Cell标示符，代表一系列
         // OC：使用static，  swift：使用let
         let cellIdentifier: String = "cellIdentifier"

         //通过cellIdentifier标示符取没有使用的Cell
         //有可能不存在，所以使用：optional
         var cell: MyTableViewCell? = tableView.dequeueReusableCellWithIdentifier(cellIdentifier) as? MyTableViewCell

         //如果cell取到是空
         if cell == nil { // no value

             //创建新的MyTableViewCell实例
             //cell样式：UITableViewCellStyle.Default
             //cell标示符：cellIdentifier
             cell = MyTableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: cellIdentifier)

             //设置字体
 //            cell!.textLabel.font = UIFont.systemFontOfSize(14)
             //2015年4月10号修改
             cell!.textLabel?.font = UIFont.systemFontOfSize()

             //设置选中cell样式
             cell!.selectionStyle = .Gray;

             //设置cell后面箭头样式
             cell!.accessoryType = .DisclosureIndicator;
         }

         var cellModel:AppsModel = self.items[indexPath.row]

         //通过自定义方法给cell赋值
         cell?.showAppInfoWithModel(cellModel)

         return cell!;
     }

     //tableView代理：点击一行
     func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath)
     {
         //释放选中效果
          tableView.deselectRowAtIndexPath(indexPath, animated: true)

         var urlString:String! = "https://itunes.apple.com/us/app/fruit-storm/id859713088?l=zh&ls=1&mt=8"

         {
             urlString = "https://itunes.apple.com/us/app/football-maze/id879720177?l=zh&ls=1&mt=8"
         }
         {
             urlString = "https://itunes.apple.com/us/app/zu-fang-dian-ping/id893902071?l=zh&ls=1&mt=8"
         }
         {
             urlString = "https://itunes.apple.com/us/app/ijump/id877475648?l=zh&ls=1&mt=8"
         }
         {
             urlString = "https://itunes.apple.com/us/app/na-li-tao/id880016522?l=zh&ls=1&mt=8"
         }

         UIApplication.sharedApplication().openURL(NSURL(string: urlString)!)
     }
 }